Monday, February 11, 2019

Strange issue of whole subnet used

Hi,

I’m running into an issue with our Meraki Network... the whole subnet of 10.129.26.0/24 has hosts... nothing shows up in dashboard only noticed when I tried to IP customer devices.

The VLAN wasn’t created until today, we are a small mom and pop shop.

Used wire shark to try and figure out what’s going on: icmp && ip.adder == 10.129.26.x everything points upstream to myip.opendns.com (while the MAC address points to a Cisco device (we have nothing up stream...).

Anyone got tips for resolving this? There are not 254 devices in our environment, especially on one VLAN.



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